如图,四边形ABCD内接于⊙O,它的一个外角∠EBC=55°,分别连接AC、BD,若AC=AD,则∠DBC的度数为( )
![](https://img.xkw.com/dksih/QBM/2019/6/16/2226682787848192/2227540353646592/STEM/89cc90c2387e44aca4300a0c3d5d3765.png?resizew=99)
![](https://img.xkw.com/dksih/QBM/2019/6/16/2226682787848192/2227540353646592/STEM/89cc90c2387e44aca4300a0c3d5d3765.png?resizew=99)
A.50° | B.60° | C.65° | D.70° |
2019·广东汕头·一模 查看更多[2]
更新时间:2019-06-23 10:10:56
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【推荐1】如图,
是⊙O的直径,C,D是⊙O上的点,
,过点
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A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】如图,
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